Spacing-table carriage.



G. P. THOMAS. SPACING TABLE CARRIAGE. APPLICATION FILED 001.17, 1911.

1,068.4;65, Patented July 29, 1913.

3 SHEETS-SHEET 1.

, .I m \o I WITNESSES: INVENTOR 24 FwulM G. P. THOMAS. SPAGING TABLECARRIAGE. APPLICATION FILED 00117, 1911.

1,068,465. Patented July 29, 1913.

3 SHEETS-SHEET 2.

WITNESSES:

MA I! 0am gm LHQQM G. P. THOMAS. SPAGING TABLE CARRIAGE. APPLIGATIO'NFILED 00117, 1911.

Patented July 29, 1913 3 SHEBTB-SHEET 3.

mv NTOR WITNESSES:

gg r-rZ UNITED STATES PATENT OFFICE.

GEORGE PAUL THOMAS, OF GLENSHAW, PENNSYLVANIA.

I SPACING-TABLEHCARRIAGE.

Specification of Letters Patent.

. Application flied October 17, 1911. Serial No. 655,223.

Patented July 29, 1913.

To all whom it may concern: I

Be it known that LGEoncE PAULTHOMAS, residing at Glenshaw,'in the countyofAllegheiiy and State of Pennsylvania, a citizen of the United States,have invented or discovered certain new and useful Improvements inSpacing-Table Carriages, of which improvements the following is aspecification.

'My invention relates to machines, which, while traveling over-aprescribed course, are

' adapted to be stopped-atpredetermined intervals bysuit abl'y providd'stop elements; illid'filids specific applica ion in spacingtablecarriages such as arejdescribed in my Letters Patent No. 908,818.

The object of'my invention to improve the general construction andoperation of such machines. p

In the accompanying drawings, which form part of my specificatiom'and'in which my invention is embodied, Figure 1 is a side "elevation of acarriage; Fig. 2 is' a plan view of the carriage shown-in Fig. 1, but ona reduced scale; Fig. 3 is'anenlarged sec-- .tional viewof the-driv ngmechanism; and

Figs. 4 and 5 are sectional views taken on the lines IV- IV and V .V,respectively, of

Fig. 3. I v

In the severalfi uresJikenumerals are used to designate 1i e parts. Thegeneral structural features and the stated'LettersP-atenh," A v truck 1forms. thestructurilial may '3. The carriage is movedla preferredstopping mechanism.- of the spacing table-shown herein are similar,inall essential respects to that shown in my above suitable frame orpart of the carwheels 2, which e on the track ong the tracks 3 b meansof the cog-wheel 4,-engaging the riage, and is provided'wit movablysupportthe carrih .r'ac '5, the said cog-wheel! being driven by themotor, 6 through interposed mechanism,

hereinafter more fully described. The stoppiii mechanism consists ofdetents 7, norheld outofengagement with the teeth 8 (the position shownin Fig. 1) by means of a catch 9, whichcatch. is secured to therotatable shaft 11-: A-finger 10 having indirect connectionto .the said.shaft 11 may.

be tripped by-the stops 12" (suitably arranged in the lineo'f'advanceofthe said finger), to the end that the shaft 11 may rotate and causethe catch 9 to release its engagement with the detents 7, which will endrop of-their own weight and engage stoppedg the teeth 8. Furthermore,as in my afoi'eam, finger 18 swings and by suitable notch land shoulderconfiguration formed on its opposite faces, locks detent 7 against forward movementand at the same time is locked against its own movement byfin ger 19.

The driving motor 6 may beinountedoir referably the carriage. andpreferably runs continu-".

ously during the punching operation. To the end that the carriage willrun smoothly and have no tendency to rebound when I preferably arrangethe several parts 0 the driving mechanism, interposed between the motor6 and the co -wh eel 4, in such a manner that a portion 0 the said in,

terposed driving mechanism willcontinueto Y move after the carriage hasbeen stoped', such movement being effective to a p y a graduallydiminishing force to the cog-wheel 4 so that the carriage may be heldfirmly against the stops. The means for accomplishing this endpreferably consist of 'a double clutch, and as specifically shownherein, consist of magnetic and friction clutches. One member of themagnet clutch .may be suitably connected ,to the armature of the motor6, and one meinber of, the friction clutch may be suitably connectedto'the cog-wheel 4; and the second member of-each clutch may beconnected so as to form-a moving part, which, by its momentum,acting-through the friction clutch, will be effective to hold thecog-wheel 4 from' mov--- ing backward. Referring more particularly tothe drawings, power is transmitted from the motor to the said cog-wheelpreferabl by chain drive 21, shaft 22, yieldin clutch member 20,gear-wheels 23 and 24,5 aft 25, gear wheels 26 and 27, andshaft 28, uponwhich the cog-wheel 4 is mounted.

While I do not Wish to limit myself to any specific yielding clutch, mypreferred form is shown in Fig. 3, and consists of a magnetic clutchand- .a friction clutch.

sprocket, wheel 30, rotated by means of the chain drive 21, may besecured rigidly to a sleeve 3, rotatablv mounted upon the shaft 32,which shaftmay be loosely mounted in" bearings and 34; and a cylinder3'5, provided witha circumferential slot 36. may be secured to the saidsleeve 31'.- Wilhin the said cylinder. and rigidly seci'li'ed to-it andthe sleeve 31, a magneticcoil 37 may be mounted, the coil heing-eli'eetLwhenr otated (and when a current o1" etrijeillv' is passed through it)to drag \'\'ii:r.fi=. a second cylinder 38, one end of which may extendthrough the slot; 256 of the cylinders 35, and the other end of which isrigidly secured to a second sleeve 39, also loosely mounted on the shaft32. The said second-named sleeve 39. may also have a. seeondcvlinderMarigidly secured to it, withhru'hieh suitable'frie tion clutch membersmay .be arranged. The .frictionelu teh preferably consists of a seriesof disks-ll, secured, as by ke vs. 4 2; to the shell or cylinder 40;and, altermitingjiwiththe disks 4], a second series-of disks 43- 25secured to the shaft 32, as by keys 44 (see- Figs. 4 and 5). To the endthatthe said alternating disks .may be held in'a proper frictionalcontact with each other, coil springs 45 maybe provided, the compressionof which maybe adjusted, as by screw 40, The further details ofconstruction of my yielding connection meinber consist of asuitable'brush contact bar ti-through "which an electrical current maypass to the ma netiek'zoi'ls 37: and a suitable ('iit'nil lneakel,effective to break the circuit throughthe coils-3T simultaneouslvwit'hthe-stopping ofthe carriage, the construction 'of whi'eh air--cuit:--hi"eal'c(-.r will ho her.ei'i iafter more fully explained I 7 I vhr the operation of the abdve described l yielding"eonneetion,-thesleeve 3[, rotated by the chain it and sprtieket-\vhe'el,30,effective,-\vh'en the circ'nitthrongh tli e eoil 37 completed, toyieldingly' drii'e the-sleeve 3,9 bv' magnetic attraetioirofthe-icyl-inder 38 The 'sle'eve 39, when yieldingly driven, 'is'"effective to drive the shaft 22 ar tl ge i'r-wvliecl 123 by means ofthe friction disks 412ml 43,:

..-.secnred alternatel and respectively, to the oylinder 40 and the saidshaft '32. It will- Qbe understood ofthis yielding connection that, aslong as it is desired to have thecar? riage advance, current is suppliedto thecoils 37 and that, when a stop is desired, the.-

circuit is broken, so. that: there is no magnetic ,force ,in theeylinder 35 to cause the-cylinder q to be -rotated with it. 'Also,'itwill be uuderstood that, when the current through 0 the coils 37is-brokeuand thejcarria gejsimultaneously stopped (as hereafterdescribed) ,1

a portion of they double clutch mechanism willicontinue torotate,-"suclipo'rtion consist- -ing' of the cylinder 38, sleeve 39 anddisks 5 41; and that such zportion will, acting through disks-43, shaft3'2; cog-wheel :23, ete. be effective to apply a gradually diminishingforce-to the eog-uheel '\\"herelr v the earriageuill be held firmlyagainst the -tops or detents; As heretof re mentioned. a circuit;breaker is p'rovidml to control jibe eireujil through'the magnetic (:oil31'. l {n el'era'lrly correlate the operation of suchn -i| i'|it-'breaker with the operationof the stopping me hanism;- and to such anenil an .a'rin almay-be rigidly secured to the rot alahle sha'l'l-1"(,"and a second arm 4!) may he pivoted to the arm4H.-thearrzulgen'u-ut heiug ueh that .the-arnl 49 may move, withrelalion to the arm 48, between the pins 50. \'t the'end of the arm 49;a eontaet pie(-e"5l m:\' he' cured,- whieh ,coutaet piece um. i with astationarycontact pit-re plete' the desired circuit; Th

I e 'tontaetfi i'eee 51 nia v be \i eldingzly held iueugagementwith thecontact piece by means of' a spring The-alra-ngelnentpf'the severalparts of the k-ireuit bi'ealcei thusffa'r. de; scribed,- is s-ueh that,when'the den-ms T'dropinto engagement with the teeth S.,aud'|"uo' \"erearwardl with relationto the, k'tarriag 'l, .the arm 4.8 will rotatewith the SllZIftL-llyillltl by i'ts'rotation will lift theContactineinler' M from engagement with the contact mean ber 52',- itbeing understood that the shaft [T is caused to rotate by means of'thelever J G, bearing against the notched portiou hof' the moving detcnts7. Furthermore, it "will be understood of this constrnetionthat thecir-- cuit-will remain. open as long as the detents 7 are held-locked intheir rearward -piis it-ion.

The means em plo \'ed for releasing the riagefro'n'i its locked positionare ,lirefei" silnilar to; the, n'le'ans employed-foe lheagune purposein. in-ir'heretofore mentioned Letters 165 Patent, and consist of a"hand; leve rigidly secured to therotatable sh'a 'whieh sl'iaff'linl: andbelLera'nh connectons are providetl as shown to the i fing'er I8iand gthe" detents .7, the ariangementl' preferably" being such that thefingerls'is t unlocke dj'then raisd 'and, followihgthe "ais'fl 'ing oft-hefinge'r 18.'the detents? areaa e until they are locked by the cat on9 addition to the hand lever 54 I h iive sl bfin a solenoid 56,automatically operative, after the operation of the punehingmaehinoftorotate thqsh'aftfifijto accomplish the uu-loclh 'ing, as described, Thecore '57-iof--t he' ;-said solenoid tnaybe-eonneetd to' thesliaft-55;by.,=12c a link-58 m arm, 59, and thearrange'inent f A ine}besucti that,-. \vh'en thesolnoid isfin-E, active, the Weight ofthesaid-flcor'e' "may" be; effective. to over-balance arm 54,}' 1T0- theendibflttonne" be established through .theeontac {and 52ini'medifitelygupon th 1g of :the fingers 1 8,' -I"s'ecure'" kfGO'efla'rmfiQ, and Isupport the; lin by passing it throiigh f the slot '61at the standardLGZQAtthcerid13-0 of the said link 60. a second link 63maybe pivoted, as shown, and may be provided with a pin 64 on which anarm 65 may rest, the

said arm 65 being rigidly secured to the shaft 55. Furthermore the link0 may be provided with a spring 67, effective, when the arm 65 israised-and the link 60 moved to the right, to liftthe said link intonotched engagement with the standard 62.

In the operation of the circuit breaking mechanism, the arm 49, beingraised, causes the link 60 to move to the right, the said linkpreferably being held down against the bottom of the slot (31, as bymeans of the weight of the solenoid core 57, acting indirectly throughlink 58, arm 59, shaft 55, arm (55, and pin 64. When the shaft 55 isrotated. either by-the hand lever 54 or the solenoid 5G, to accomphsh anunlocking of the fingers 19 and 18, the link 60 may be lifted intonotched engagement with the standard 62; and, after the entire operationof unlocking the carriage has been accomplished. the arm 65 will, whileit is being lowered. engage the pin (54. and be effective to counteractthe effect of the spring (37, to the end that the link 60 may bereleased and contact reestablished between the contact members 51 and52. In this disclosure I have also shown a second circuit-breaker,effective to control the punch operating circuit. Such circuit-breakerpreferably consists of a movable contact arm ()8 rigidly secured to therotatable shaft 17. and a cooperating stationary contact member (39.These contact members are so arranged that. when the carriage isstopped, the circuit will be completed through the punch-operatingmechanism to the end that the punch may be auton'latically set in motionat the proper time.

It will be understood of my invention that. when the circuit through themagnetic coil 37 has been broken. the momentum of the cylinder 38 andthe parts directly connected to it will be effective to hold thecarriage in a firm locked position so that no rebound is possible.

I claim herein as my invention:

1. The combination with a spacing table provided with a series of stops.of a carriage movable with relation to said table, said carriageprovided with means for engaging said table stops, a driving mechanism,a motor, and means effecthe upon the Stopping of the said carriage forholding said stop engaging means firmly against the said stops.substantially as described.

2. In a spacing table carriage, the combination of a movable frame,driving mecha' nism mounted on said frame, a motor, and operativeconnection between said motor and said driving mechanism. saidconnection includin magnetic and friction clutches adapted to hold thecarriage against rebound when stopped, substantially as described.

3. In a spacing-table carriage, the combination of a frame, a motormounted on said frame. driving mechanism, and a clutch between saidmotor and said driving mechanism, said clutch being effective to holdthe said -arriage against rebound when stopped, suljistantially asdescribed.

4. A motor operated spacing-table carriage, provided with a lockingmechanism, a magnetic clutch affording a yielding driving connection. ano 'ierating circuit for said clutch. and means effective upon theoperation of said locking mechanism for breaking said clutch operatingcircuit, substantially as described.

In a spacing table carriage, the combination with a movable frame, amotor, and a driving mechanism, of a double yielding connection betweensaid motor and said driving mechanism, said connection consisting of arotatable shaft, a sleeve rotatable upon said shaft and directlyconnected to said motor. a magnetic coil secured to said sleeve, asecond sleeve rotatable upon said shaft and extending within themagnetized field of said magnetic coil, a series of disks secured tosaid second named sleeve, and a second series of disks secured to saidshaft and alternately disposed with relation to said first named series.substantially as described.

t'. In a spacing table carriage, the c0mbination with a movable frame.driving mechanism mounted on said frame, and a motor, of operativedriving connection between said motor and said driving mechanism, saidconnection including a movable, mem ber effective by its movement afterthe stopping of the 'arriage to prevent any backward movement thereof.substantially as described.

7. In a spacing tablecarriage, the combination with a movable frame, amotor, and a driving mechanism, of operative driving connectionbetweenisaid motor and said driving mechanism, said driving connectionconsisting of a magnetic clutch having one member thereof connected tosaid motor, a friction clutch having one member thereof connected tosaid driving mechanism, and the second member of the said clutchesunited to move together, substantially as described.

8. In a spacing-table carriage, the combination with a motor drivenframe and a lacking mechanism therefor, of a circuitbreaker controllinga tool-operating circuitand normally held in circuit breaking positionbut effective on and by the locking of the said carriage to clcse thesaid tool-operating circuit. and a second circuit breaker normallycompleting a carriage-operating circuit but effective on and by thelocking f the said earriage to break the said lastnatued eirvuit.lli)\i2lllli ;li[ as dest'ribed i In a paring ta le carriage. theeon|bination with a motor driven frame, and a 5 locking ni rhanisn'itherefor. of a circuit breaker nor:ua|l v t'fllllllit'lillfl aearriage-operatiu; lltllll. #ItHi eu't-ult breaker eti'eg tn'e upon theoperati n f said locking met-haui.-ui to break said r'arriagwolieratingrir- I lo uzut. and Hl(2ll| ell'eelive after the rdeasiu g ofv aidhrt'hing uu-t-haui'sm to bring said eir euit breath r to its normaloperative position. substantlail as: des 'rtbed.

I The eouibiuation with a spacing tabie and a series of stop elements.of a carriage 20 luerhauislu operative to rotate the said shaft.

and a member n rmally r tating with the said shal't, said tin-tuberrontiuuiug its rota lion and exerting by its momentum a torque upon thesaid shal't after the arrest thereof.

11. In a spat-mg table mat-lune. a rarriage.

' driving meehanisin borne by the earriage, a

motor borne by said carriage, an eieetrie ehtteh borne by said (-arriagethrough whi h the Power of the motor is imparted to the drivinglllttiullliSlH. an eh-etrie r-ireuit eonlu'r'ted with said eluteh. acircuit make-aud- I'X'i'flh devit'e in said (-ireuit. a stop inunovablewith respeet to said ('arriage. means operative on engagement of saidrarriage \vith Hlifl st p to np'eu said l uake-aud-break device. I

12. The combination oi movable earriage. means for driving saidravriage. a series of stop elenu-nts. means for engaging said stopelements and eoi'iperating therewith to stop said carriage and meansefi'eetive upon the stopping of said carriage folz. holding saidstoyeugagiug means firmly against said stops.

In testimony \vhereofl have hereunto set my hand.

GEORGE PAUL 'IIIOVAS. \Yitnesses:

l.\t'|. X. ('urruuww, lhcivnucn FITZGERALD.

